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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: strange behaviour of utf-8 files
Date: Sat, 16 Nov 2013 16:55:08 +0100
Organization: cbb software GmbH
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Date: 2013-11-16T16:55:08+01:00
List-Id: <comp.lang.ada>

On Sat, 16 Nov 2013 07:09:48 -0800 (PST), Stoik wrote:

> If the compiler cannot deal properly with the source code
> written in the utf-8 encoding,

The compiler can. I believe there are GCC switches which together with
locale control that.

> then the whole effort that went into all
> the wide_ and wide_wide_ packages and the new packages that deal with
> various encodings is lost (all the Latin-x possibilities are useless
> anyway, at least on Windows platform).

Not at all. Ada's String directly corresponds to the A-functions of Windows
API. Windows W-functions are UTF-16.

And the issue has nothing to do with the language. It is about using one
encoding in the editor and another with the compiler.

> with ada.text_io; use ada.text_io;
> procedure example is
>    S : String := "ó";
> begin
>    Put_Line (S'Length'Img);
> end;

As I said in order to avoid troubles, don't use anything but ASCII. Do
this:

  SMALL_LETTER_O_WITH_ACUTE_UTF8 : constant String :=
     Character'Val (16#C3#) & Character'Val (16#B3#);

  SMALL_LETTER_O_WITH_ACUTE_Latin1 : constant String :=
     (1 => Character'Val (16#F3#));

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de